{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "DNA", "cell type", "RNA"], "input": "For rats exposed to a natural environmental photic cycle or a 12L:12D artificial light regime, peak values of hepatic GR were detected between 23:00 and 02:00 h."}
{"protein": ["hepatic GR"], "DNA": [], "cell type": [], "RNA": []}